Question

question 2 (1 point)
what are the two forces acting on a star?
a gravity
b electromagnetic
c friction
d fusion

Explanation:

Gravity acts to pull the star's matter inward. Fusion (nuclear fusion in the star's core) provides an outward - pushing force (thermal and radiation pressure) that counteracts gravity. Electromagnetic force is not the main force in a star's equilibrium on a large - scale (though it has roles in atomic - level interactions). Friction is negligible in the context of a star's large - scale force balance.

Answer:

a. Gravity, d. Fusion